Austin and Marissa should observe the number of open stomata on one leaf, mist the leaf with water, wait one hour, and count the number of open stomata again.
In the epidermis of tree leaves and needles, there are cell structures called stomata that play a role in the exchange of water and carbon dioxide between plants and the atmosphere.
Stomata, the tiny pores on the outside of leaves and stalks, control how gases enter and exit leaves and therefore, how plants as a whole function. On all periods, ranging from minutes to millennia, they adjust to regional and global changes.
Guard cells are a pair of specialized epidermal cells that make up stomata. By adjusting the size of the stomatal pore, stomata govern water loss and the exchange of gases between the plant and its surroundings.
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Answer:
genotypes:
0% homozygous black fur (BB)
50% heterozygous black fur (Bb)
50% homozygous brown fur (bb)
phenotypes:
50% black fur
50% brown fur
Explanation:
B b
b . Bb bb
b . Bb bb
A geochemical cycle is the pathway that involves the movement of elements or substances in the Earth's surface and the crust. I believe the answer are hydrologic, heat, and rock. These are the three main geochemical cycles of the Earth and are responsible of continuously removing and adding materials here on Earth.
Replication forkThe process by which DNA make copies of itself during cell
division is known as DNA replication. During DNA replication, the double helix
structure of DNA molecule is unzip by helicase enzyme which break the hydrogen
bond holding the complementary DNA base together. However, the separation of
the DNA strands will create Y shape called replication fork. Replication fork
will acts as template for creating new strands of DNA.
